package com.wu.dms.dao.mapper;

import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.wu.dms.dao.entity.Song;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;

/**
 * @author Cousin
 */
@Mapper
public interface SongMapper extends BaseMapper<Song> {
    @Select("select count(*) from music.song")
    Long selectCount();
}
